Air purifier



FIG. 1 is a perspective view of the air purifier according to theinvention showing the top, back and side.

FIG. 2 is a front view of the air purifier.

FIG. 3 is a back view of the air purifier.

FIG. 4 is a top view of the air purifier.

FIG. 5 is a bottom view of the air purifier.

FIG. 6 is a right side view of the air purifier; and,

FIG. 7 is a left side view of the air purifier.

The broken lines are for the purpose of illustrating environment andform no part of the claimed design.

CLAIM The ornamental design for an air purifier, as shown and described.